Core i3-5xx and Core i5-6xx machines are also slated for the early part of 2010, based on that energy-conscious Clarkdale core we've already seen, with the difference being that Turbo Boost and higher L3 cache (4MB versus 3MB) will be available on the higher numbered chips.
ENGADGET: HP leaks forthcoming Radeon GPUs, Core i3 CPUs, Hulu and Netflix software integration